3.02 a.m.: Turkey Erdogan said that nation must gather in squares to give response to attempted uprising.

3.01 a.m.: Turkish PM says siege underway at some important buildings

3.00 am: U.S. President Barack Obama briefed on situation in Turkey, says White House

2.57 am: Turkish PM says seige underway at some important buildings.

2.50 a.m.: Turkey’s armed forces “fully seized control” of the country Friday, according to a statement from the military published by a Turkish news agency, as gunfire was heard outside military headquarters, fighter jets buzzed over the capital and vehicles blocked two major bridges in Istanbul. The prime minister, however, said there was an “attempt” at a coup. Read more

2.44 a.m.: Announcer on Turkey's TRT says democratic and secular rule of law has been eroded by current government

2.43 a.m.: Turkish military declares martial law and curfew: TRT state TV

2.27 a.m.: Turkish presidential source says statement made on behalf of armed forces was not authorised by military command.

2.24 a.m.: A source in Istanbul told The Hindu that it was unclear which faction of the Army was responsible for the coup.

2.18 a.m.: Turkey's armed forces said on Friday they had taken power in the country to protect the democratic order and to maintain human rights. In a statement sent by email and reported on Turkish TV channels, the military said all of Turkey's existing foreign relations would be maintained and that the rule of law would remain the priority. Turkey's prime minister said earlier a faction within the army had attempted to seize power but that they would be pushed back and that it was wrong to call it a coup.

2.17 a.m.: Turkey's top general 'held hostage' at military HQ: state agency

2.14 a.m.: Some hostages taken at Turkish Military headquarters in Ankara, says a TV report.

1.50 a.m.: Turkish Military says has taken over for democratic order, human rights to remain.

1.45 a.m.: Turkish Prime Minister Binali Yildirim on Friday denounced what he said was an "illegal attempt" by elements in the military after bridges were partially shut down in Istanbul and jets flew low over Ankara."We are working on the possibility of an attempt. We will not allow this attempt," he told NTV television by telephone, without expanding on the nature of the move but saying it was by a group in the Turkish military. "Those who are in this illegal act will pay the highest price," he added, saying it would not be correct to describe the move as a "coup".

1.44 a.m.: Turkish security forces on Friday partially shut down the two bridges across the Bosphorus Strait in Istanbul as military jets were heard flying low over Ankara, reports and AFP correspondents said. The Bosphorus and Fatih bridges were closed by the gendarmerie -- a branch of the Turkish military dedicated to internal security -- for traffic travelling from Asia to Europe, NTV television said. Traffic was still moving in the other direction. Meanwhile, Turkish military aircraft were heard flying low over Ankara, AFP correspondents in the capital reported. There was no immediate explanation for the cause of the incidents.